wip: move all application files into application folder

quad/sw/modular_quad_pid/src/application/log_data.h

quad/sw/modular_quad_pid/src/application/lscript.ld

quad/sw/modular_quad_pid/src/application/main.c

quad/sw/modular_quad_pid/src/application/mio7_led.c

quad/sw/modular_quad_pid/src/application/mio7_led.h

quad/sw/modular_quad_pid/src/application/new_PID.h

quad/sw/modular_quad_pid/src/application/new_log_data.c

quad/sw/modular_quad_pid/src/application/new_log_data.h

quad/sw/modular_quad_pid/src/application/old_log_data.h

quad/sw/modular_quad_pid/src/application/packet_processing.c

quad/sw/modular_quad_pid/src/application/packet_processing.h

quad/sw/modular_quad_pid/src/application/platform.c

quad/sw/modular_quad_pid/src/application/platform.h

quad/sw/modular_quad_pid/src/application/platform_config.h

quad/sw/modular_quad_pid/src/application/quadposition.h

...modular_quad_pid/src/application/send_actuator_commands.c

...modular_quad_pid/src/application/send_actuator_commands.h

quad/sw/modular_quad_pid/src/application/sensor.c

quad/sw/modular_quad_pid/src/application/sensor.h

quad/sw/modular_quad_pid/src/application/sensor_processing.c